Warning ! ! !

The Software is compatible with the following receivers:

Optimuss UNDERLINE 3in1


Extract the zip file put it in the root (not in a folder) in USB Stick. 
From the Menu --> System --> Software Update --> Upgrade By USB,
 
Select:

File Path: --------> uda
Upgrade File: -----> e.g. optimuss_underline_3in1_1473.abs
Upgrade Mode: -----> All SW & bootloader
			    
Press Start. 

The receiver will reboot and it's ready.






